[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR86.709-99]
[Page 61-63]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 86--CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND
ENGINES (CONTINUED)--Table of Contents
Subpart H--General Provisions for In-Use Emission Regulations for 1994
and Later Model Year Light-Duty Vehicles and Light-Duty Trucks
Sec. 86.709-99 In-use emission standards for 1999 and later model year
light-duty trucks.
Section 86.709-99 includes text that specifies requirements that
differ from Sec. 86.091-9 of subpart A of this part. Where a paragraph
in Sec. 86.091-9 is identical and applicable to Sec. 86.709-99, this may
be indicated by specifying the corresponding paragraph and the statement
``[Reserved]. For guidance see Sec. 86.091-9.'' Where a corresponding
paragraph of Sec. 86.091-9 is not applicable, this is indicated by the
statement ``[Reserved].''
(a)(1)(i)(A) Light light-duty trucks. In-use exhaust emissions from
1999 and later model year light light-duty trucks shall meet all
standards in tables H99-1 and H99-2 in the rows designated with the
applicable fuel type and loaded vehicle weight.
[[Page 62]]
Table H99-1--Intermediate Useful Life \1\ Standards (g/mi) for Light Light-Duty Trucks
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Fuel LVW (lbs) THC NMHC THCE NMHCE CO NOX PM
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline.................................................... 0-3750 ......... 0.25 ......... ......... 3.4 0.4 0.08
Gasoline.................................................... 3751-5750 ......... 0.32 ......... ......... 4.4 0.7 0.08
Diesel...................................................... 0-3750 ......... 0.25 ......... ......... 3.4 1.0 0.08
Diesel...................................................... 3751-5750 ......... 0.32 ......... ......... 4.4 0.97 0.08
Methanol.................................................... 0-3750 ......... ......... ......... 0.25 3.4 0.4 0.08
Methanol.................................................... 3751-5750 ......... ......... ......... 0.32 4.4 0.7 0.08
Natural Gas................................................. 0-3750 ......... 0.25 ......... ......... 3.4 0.4 0.08
Natural Gas................................................. 3751-5750 ......... 0.32 ......... ......... 4.4 0.7 0.08
LPG......................................................... 0-3750 ......... 0.25 ......... ......... 3.4 0.4 0.08
LPG......................................................... 3751-5750 ......... 0.32 ......... ......... 4.4 0.7 0.08
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\1\ The applicable useful life is 5 years or 50,000 miles, whichever first occurs.
Table H99-2--Full Useful Life Standards (g/mi) for Light Light-Duty Trucks
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fuel LVW (lbs) THC \2\ NMHC \1\ THCE \2\ NMHCE \1\ CO \1\ NOX\1\ PM \1\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline.................................................... 0-3750 0.80 0.31 ......... ......... 4.2 0.6 0.10
Gasoline.................................................... 3751-5750 0.80 0.40 ......... ......... 5.5 0.97 0.10
Diesel...................................................... 0-3750 0.80 0.31 ......... ......... 4.2 1.25 0.10
Diesel...................................................... 3751-5750 0.80 0.40 ......... ......... 5.5 0.97 0.10
Methanol.................................................... 0-3750 ......... ......... 0.80 0.31 4.2 0.6 0.10
Methanol.................................................... 3751-5750 ......... ......... 0.80 0.40 5.5 0.97 0.10
Natural Gas................................................. 0-3750 ......... 0.31 ......... ......... 4.2 0.6 0.10
Natural Gas................................................. 3751-5750 ......... 0.40 ......... ......... 5.5 0.97 0.10
LPG......................................................... 0-3750 0.80 0.31 ......... ......... 4.2 0.6 0.10
LPG......................................................... 3751-5750 0.80 0.40 ......... ......... 5.5 0.97 0.10
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\1\ The applicable useful life is 10 yeras or 100,000 miles, whichever first occurs, except that no enforcement testing will be done beyond 7 years or
75,000 miles, whichever first occurs.
\2\ The applicable useful life is 11 years or 120,000 miles, whichever first occurs.
(B)(1) Vehicles subject to the standards of paragraph (a)(1)(i)(A)
of this section shall be all actual U.S. sales of light light-duty
trucks of the applicable model year by a manufacturer.
(2) A manufacturer can not use one set of engine families to meet
its in-use intermediate useful life standards and another to meet its
in-use full useful life standards. The same families which are used to
meet the intermediate useful life standards will be required without
deviation to meet the corresponding full useful life standards.
(ii)(A) Heavy light-duty trucks. In-use exhaust emissions from 1999
and later model year heavy light-duty trucks shall meet all standards in
tables H99-3 and H99-4 in the rows designated with the applicable fuel
type and adjusted loaded vehicle weight.
Table H99-3--Intermediate Useful Life \1\ Standards (g/mi) for Heavy Light-Duty Trucks
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fuel ALVW (lbs) THC NMHC THCE NMHCE CO NOX PM
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline...................................................... 3751-5750 0.80 0.32 ......... ......... 4.4 0.7 0.10
Gasoline...................................................... 0.80 0.39 ......... ......... 5.0 1.1 0.12
5750
Diesel........................................................ 3751-5750 0.80 0.32 ......... ......... 4.4 0.98 0.10
Diesel........................................................ 0.80 0.39 ......... ......... 5.0 1.53 0.12
5750
Methanol...................................................... 3751-5750 ......... ......... 0.80 0.32 4.4 0.7 0.10
Methanol...................................................... ......... ......... 0.80 0.39 5.0 1.1 0.12
5750
Natural Gas................................................... 3751-5750 ......... 0.32 ......... ......... 4.4 0.7 0.10
Natural Gas................................................... ......... 0.39 ......... ......... 5.0 1.1 0.12
5750
LPG........................................................... 3751-5750 0.80 0.32 ......... ......... 4.4 0.7 0.10
LPG........................................................... 0.80 0.39 ......... ......... 5.0 1.1 0.12
5750
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\1\ The applicable useful life is 5 years or 50,000 miles, whichever first occurs.
Table H99-4--Full Useful Life \1\ Standards (g/mi) for Heavy Light-Duty Trucks
--------------------------------------------------------------------------------------------------------------------------------------------------------
Fuel ALVW (lbs) THC \2\ NMHC \1\ THCE \2\ NMHCE \1\ CO \1\ NOX\1\ PM \1\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Gasoline...................................................... 3751-5750 0.80 0.46 ......... ......... 6.4 0.98 0.10
Gasoline...................................................... 0.80 0.56 ......... ......... 7.3 1.53 0.12
5750
Diesel........................................................ 3751-5750 0.80 0.46 ......... ......... 6.4 0.98 0.10
[[Page 63]]
Diesel........................................................ 0.80 0.56 ......... ......... 7.3 1.53 0.12
5750
Methanol...................................................... 3751-5750 ......... ......... 0.80 0.46 6.4 0.98 0.10
Methanol...................................................... ......... ......... 0.80 0.56 7.3 1.53 0.12
5750
Natural Gas................................................... 3751-5750 ......... 0.46 ......... ......... 6.4 0.98 0.10
Natural Gas................................................... ......... 0.56 ......... ......... 7.3 1.53 0.12
5750
LPG........................................................... 3751-5750 0.80 0.46 ......... ......... 6.4 0.98 0.10
LPG........................................................... 0.80 0.56 ......... ......... 7.3 1.53 0.12
5750
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\1\ The applicable useful life is 11 years or 120,000 miles, whichever first occurs, except that no enforcement testing will be done beyond 7 years or
90,000 miles, whichever first occurs.
\2\ The applicable useful life is 11 years or 120,000 miles, whichever first occurs.
(B)(1) Vehicles subject to the standards of paragraph (a)(1)(ii)(A)
of this section shall be all actual U.S. sales of heavy light-duty
trucks of the applicable model year by a manufacturer.
(2) A manufacturer can not use one set of engine families to meet
its in-use intermediate useful life standards and another to meet its
in-use full useful life standards. The same families which are used to
meet the intermediate useful life standards will be required without
deviation to meet the corresponding full useful life standards.
(iii) Exhaust emissions of carbon monoxide from 1999 and later model
year light-duty trucks shall not exceed 0.50 percent of exhaust gas flow
at curb idle at a useful life of 11 years or 120,000 miles, whichever
first occurs (for Otto-cycle and methanol-fueled diesel-cycle light-duty
trucks only)
(iv) CST emissions from gasoline-fueled Otto-cycle light-duty trucks
measured and calculated in accordance with subpart O of this part may
not exceed the standards listed in paragraphs (a)(1)(iv) (A) and (B) of
this section.
(A) Hydrocarbons: 220 ppm as hexane.
(B) Carbon monoxide: 1.2 percent.
(2) The standards set forth in paragraphs (a)(1)(i) and (a)(1)(ii)
of this section refer to the exhaust emitted over a driving schedule as
set forth in subpart B of this part and measured and calculated in
accordance with those procedures. The test weight basis for light light-
duty trucks, for the purposes of determining equivalent test weight as
prescribed in Sec. 86.129-94, shall be loaded vehicle weight. The test
weight basis for heavy light-duty trucks, for the purposes of
determining equivalent test weight as prescribed in Sec. 86.129-94,
shall be adjusted loaded vehicle weight. The standard set forth in
paragraph (a)(1)(iii) of this section refers to the exhaust emitted at
curb idle and measured and calculated in accordance with the procedures
set forth in subpart P of this part.
(3) The standards set forth in paragraph (a)(1)(iv) of this section
refer to the exhaust emitted during the CST as set forth in subpart O of
this part and measured and calculated in accordance with those
provisions.
(b) The provisions of Sec. 86.097-9(b), (c), and (g) through (k) of
subpart A of this part apply to this section.
[56 FR 25781, June 5, 1991, as amended at 57 FR 31922, July 17, 1992; 58
FR 58425, Nov. 1, 1993; 59 FR 48520, Sept. 21, 1994]